Water-cooling system for explosion-motors.



No. 769,582. PATENTED SEPT. 6, 1904. H. AUSTIN.

WATER COOLING SYSTEM FOR EXPLOSION MOTORS.

. APPLICATION FILED AUG. 6, 1902- NO MODEL.

2 SHEETS-SHEET 1.

fi a l9 1 5 j m B a wwqga M /W M MW MW PATENTED SEPT. 6, 1904.

H. AUSTIN. WATER COOLING SYSTEM FOR. EXPLOSION MOTORS.

APPLICATION FILED AUG. 6- 1902- 2 BHEETB-SHEET 2.

N0 MODEL Patented September 6, 1904.

HERBERT AUSTIN, OF ERDINGUN, NEAR BIRMINGHAM, ENGLAND.

WATER-COOLlNG SYSTEM FOR EXPLOSION-MOTORS.

SPECIFICATION forming part of Letters Patent No. 769,582, dated September Application filed August 6, 1902.

To (all whont it Hui/y canoe/'11..-

Be it known that I, HERBERT AUsTrN, a subject of the King of Great Britain, residing at Erdington, near Birmingham, England, have invented certain new and useful Improvements in ater-Cooling Systems for Explosion-Motors, of which the following is a specification.

This invention relates to means for cooling the cylinder and valve-chest of an internalcombustion engine, and particularly of such an engine when employed as a motor for a selfn'opelled vehicle. In this class of engines it is the common practice to cool the cylinders and other heated parts by effecting circulation of water through jackets about the same, and the present invention is embodied in means for cooling with air this jacketwater as it is circulated. This means com prises in part an apparatus in which the water from the jackets liows to and fro through a connected series or system of gilled cooling-pipes between two upright headers or chambered tanks of relatively small capacity which serve to change the direction of the zigzag flow through the cooling-pipes and in sure that the system is kept full of water. The hot water from the jackets enters the upper part of the system of cooling-pipes and flows downward from one to the other to the pump, which forces it again into the jackets.

Another feature of the invention is the means provided for permitting the steam and air to escape to the atmosphere from the chambers in the said upright headers or tanks. In the partitions which separate the superposed chambers are small and always open apertures, which permit the air and steam to rise to the upper chamber of the series, and from this chamber the air and steam escape through a restricted outlet to the atmosphere. The cooling-water is supplied to the cylinderjacket and valve-chest jacket through separate conduits, whereby each is supplied with water at substantially the same temperature, and an auxiliary set of cooling-pipes is supplied for preliminarily reducing the temperature of the water from the valve-chest jacket Serial No. 118,616. \No model.)

before it enters the main system of coolingpipes.

The invention is illustrated by the drawings herewith, of which Figure 1 is a longitudinal section through a cooling apparatus constructed according to this invention, showing a pair of motors in side elevation. Fig. 2 is a plan view of the cooling apparatus and motors; and Fig. 3 is a rear elevation of the cooling apparatnsthat is to say, looking in the direction of the arrow, Fig. 1--and shows the motorcylinders and their jackets in transverse section.

Two vertical headers on tanks A A of small horizontal section are lixed at opposite sides of the motor-car, and connnuuicating between these tanks are a number of coolingpipes B B, &c. in position one above another, each of which passes for some distance along each side of the car and passes also across the front thereof. These cooling-pipes are provided with gills has is usual with water-cooling pipes. The tank A has horizontal partitions a, which divide it into a number of superposed compartments, and the tank A is similarly divided by horizontal partitions u,which alternate in their positions with the partitions (1 into one more compartment in number than those of the tank A. The top coolingpipe B communicates with the uppermost compartments of the tanks. The next pipe communicates with the uppermost compartment of the tank A and the second compartment of the tank A, the third pipe with the second compartment of the tank A and with the second compartment of the tank A, and so on, as shown, the lowest pipe communicating with the lowest compartments of the tanks.

The motor-cylinders K K are arranged, preferably, at a lower level than the cooling system in order that the cooling may be effected to some extent by a natural circulation should the pump fail. The water flows from the bottom of the tank A through a pipe 0 into the circulating-pump G and is forced by the pump through pipes (Z and w into the bottom of the water-jacket of the motor-cylinder K and through the pipe (Z and through a pipe 1 into one side of the water-jacket E of the and the two cylinderjackets are connected by" a passage 9.

The hot water flows from the top of the jacket of the cylinder K through a pipe it into a pipe D and thence into the uppermost compartment of the tank A. It then passes through the pipe B into the uppermost compartment of the tank A, thence through the pipe B into the second compartment of the tank A, thence through the pipe B into the second compartment of the tank A, and so on, finally passing from the lowest compartmentof the tank A through the pipe B into the lowest compartment of the tank A, thus completing the cycle of the water which passes through the cylinder-jackets.

The hot water from the jackets E E of the valve-chests flows out from the side of the jacket E through a pipe in to an auxiliary system of cooling-pipes F and through them by the pipe D to the uppermost compartment of the' tank A, from whence it flows, with the water from the cylinder-jackets, through the cooling-pipes B B, &c., to the lowest compartment of the tank A, thus completing the cycle of the water which passes through the valve-chest jackets.

The tanks A A being carried some distance above the level of the upper pipe B insures that if a proper supply of water is poured into either tank the cooling pipes and jackets will be kept full of water for a considerable time; but owing to the provision hereinafter described for the escape of steam water will of course require to be added from time to time.

Openings Z of a size only which will not substantially interfere with the circulation of the water are formed in the partitions (t a of the tanks A A to allow air or steam to pass into the uppermost compartments. Any excess of air or steam which may collect in the tank A will pass through the radiating-pipe B to the tank A. Pipes m, which for conven-.

ience may be brought out at the bottoms of the tanks A A, as shown, communicate, respectively, with the compartments at the tops of the tanks and allow air and steam to escape and also act as overflows. The tanks A A have openings in the tops covered by screwcaps. The water may thus be supplied to either tank. There may of course be a sin gle motor-cylinder only, if desired. The two tanks may, if desired, be divided into the same number of compartments as would be the case, for instance, if the lowest partition (4 of the tank A were removed. In such case the pipe B might be dispensed with, and the water would pass from the bottom of the tank A to the cooling-jackets without passing again through the tank A.

Special features of the invention are the circulation of the water through a cooling sys- "tem' bypassing it successively through pipes which follow one another in a descending order and the means provided for the escape of steam and air at the points where the water flows from the end of one pipe of a cooling system into the end of the next pipe of the system. The purpose in superposing the pipes of the cooling system and connecting the upper end with the outlets of the jackets is to utilize the heat for assisting in the circulation of the water through the system or co1 Having fully described my invention, what I claim, and desire to secure by Letters Patent, is

1. In means for the purpose specified, the combination with the cylinder and valve-chest jackets of an internal-combustion engine, of a plurality of main cooling-pipes connected in a superposed system, one end of said system of pipes being connected with the outlet of the cylinder-jacket, thereby receiving the full flow from the jacket, and the other end of said system of pipes being connected with the inlets of both the cylinder-jacket and valve-chest jacket, a supplementary system of cooling-pipes between and connecting the outlet of the valve-chest jacket with the inflow to the main system of cooling-pipes, and means for effecting the circulation of water through said jackets and system of coolingpipes.

2. In means for the purpose specified, a plurality of cooling-pipes superposed in position and connected at their ends through the medium of upright headers containing superposed chambers into which the respective pipes open, thus forming a continuous conduit, and said headers, having normally open, restricted apertures in the partitions between said chambers, and a normally open outlet to the atmosphere from the upper chamber for the steam and air.

3. The combination with the cylinder-jacket and valve-chest jacket of an internalcombustion engine, of a water-cooling system of pipes connected to form a continuous waterconduit for the full flow of the water which passes through such jackets, said system being exposed to the air, pipes separately connecting the outlets of said jackets with the higher portion of said cooling-conduit, and pipes separately connecting the inlets of said jackets with the lower portion of said coolingconduit.

4. Means for the purpose specified comprising the jacket of an internal-combustion v engine, two upright headers each divided into superposed compartments by apertured partitions, a continuous conduit for the full How of the water which passes through said jacket, formed by superposed pipes connecting at their ends through the respective compartments in the headers, and pipes connecting the outlet and inlet of the said jacket respectively. With the upper and lower extremities of said conduit, the upper compartments in the headers being open, normally, to the atmosphere for the escape of steam and air from I0 the. system.

In Witness whereof 1 have hereunto signed my name, this 22d day of July, 1902, in the presence of two subscribing Witnesses.

HERBERT AUSTIN.

'itnesses:

ROBERT (Jr. Gnovns, FREDERICK JOHN EDWARDS. 

